'South Park' critic held on terror charge

The man who sent death threats to South Park creators Trey Parker and Matt Stone has reportedly been detained by the FBI on unrelated charges.

Zachary Chesser was allegedly held after confessing his links to a terror group believed to be affiliated with al-Quaeda. He admitted that he had attempted to fly to Kenya and Somalia in order to join Al-Shabaab, taking his young son with him on the trip as cover.

Chesser, a convert to Islam, has operated websites and a YouTube channel centred on militant propaganda.

He had previously posted a message online warning Parker and Stone that they could "end up dead" after an episode of South Park depicted the Muslim prophet Muhammed wearing a bear costume.

"It's not a threat, but it really is a likely outcome," he later told Fox News. "They're going to be basically on a list in the back of the minds of a large number of Muslims. It's just the reality."

The new charges against Chesser are in no way related to the South Park controversy.